Chronoswiss

Sirius Date Medium

Reference Number :

CH-2091R-SI

Series : Heritage

Retail: $13,970

(As of: 04/2025)

This watch is not for sale, this page is just for reference purposes only. If you would like to purchase this watch, please contact Chronoswiss. If you are interested in selling this watch to us, you can contact us here.

Quick TakeThere's an undeniable warmth to the Sirius Date Medium, radiating from its 18-karat red gold case. It's not shouting for attention, but rather offers a confident glow, perfectly sized at 34mm for understated presence. The real magic happens when you look closer: that solid sterling silver dial isn't just silver, it's a canvas of intricate guilloche work, dancing with the light. And those hands! Classic Breguet Losange shapes, heat-blued to a perfect cornflower shade, sweeping across the textured dial, driven by the reliable heartbeat of the automatic Caliber C. 281 within. Even the little details, like the knurled bezel and the hand-bent minute hand, speak to a level of craft that feels personal. It’s a watch that balances traditional elegance with precise mechanics, a companion piece that feels both luxurious and intimately familiar, secured comfortably with its alligator-embossed calfskin strap.

DescriptionThe Chronoswiss Sirius Date Medium, reference CH-2091R-SI, is housed within a case constructed from 18-karat red gold. Dimensional specifications measure 34 mm in diameter and 8.95 mm in height, accommodating an 18 mm band width. The case composition involves 20 distinct parts. Surface treatment incorporates both polished and satin finishes for contrast. A defining characteristic is the polished screw-down bezel, featuring lateral knurling and a full thread engagement mechanism. Securing the enclosure is a screw-down case back, executed with a satin finish and fitted with a sapphire crystal aperture for movement observation. Water resistance is rated at 3 bar, equivalent to a depth of 30 meters, offering protection against incidental moisture contact but not suitable for submersion activities. The overall structure reflects established horological engineering principles for durability and aesthetic integration.

Internal operation relies on the Caliber C. 281 automatic movement. This self-winding mechanism operates at a frequency of 4 Hz, corresponding to 28,800 alternations per hour (A/h), ensuring smooth seconds hand progression. It incorporates 21 jewels to minimize friction at critical points within the gear train. The movement provides a power reserve of approximately 40 hours when fully wound. Time indication is presented via central hour, minute, and second hands, supplemented by a date display located in a window positioned at the 6 o'clock mark. The dial itself is fabricated from solid sterling silver (925) and features a guilloche pattern as a primary decorative element. Hand design specifies thermally blued steel, employing a "Breguet Losange" shape. These hands are diamond cut and curved, with the minute hand receiving a final bend applied manually. The accompanying strap is made from calfskin, treated with an alligator embossing, and fastens using either a traditional pin buckle or an optional folding clasp.

GenderWomen

SignaturesChronoswiss

Country of OriginSwitzerland

Case Size34 mm

MovementAutomatic

CaliberC. 281

FunctionsHours, Minutes, Seconds, Date

Power Reserve40 Hours

Case MaterialsRed Gold

Bezel MaterialsRed Gold

Lug MaterialsRed Gold

Case BackSapphire Crystal